City 2 and A page containing the complementary error function table is provided with the exam sheet. Notes and books can be open throughout the exam. Cell phones should be completely turned off and calculators are allowed. A VSAT network is established where the hub is located at City 1 and the two terminals are located City 3. The satellite is Eutelsat Hot Bird 13B at 13E. with a (G/T)sat of 12 dB/K, output backoff loss of 2 dB and input backoff loss of 2 dB. The transponder which will be used for this network has a bandwidth of 36 MHz. The modulation is 16-PSK with a modulation loss of 1 dB, 7/8 FEC and 20% rolloff factor. Outbound link has the following parameters: Downlink frequency 11800 MHz, uplink frequency 14100 MHz, bitrate 64 Mbps. Inbound link has the following parameters: Downlink frequency 12000 MHz, uplink frequency 14300 MHz, bitrate 32 Mbps. City 1 City 2 City 3 Coordinates EIRP sa Noise figure Room temperature Transmission line loss Atmospheric losses 4 dB 2 dB 1 dB 290K 290K 290K 2 dB 0.5 dB 0.3 dB 0.8 dB 0.8 dB 0.3 dB city1 = HAMBURG city2 = HELSINKI city3 = ERZURUM a) Fill in the blank cells of the below table. City 1 City 2 City 3 Distance to satellite Elevation angle Azimuth angle FSPL down FSPLup Downlink bandwidth Uplink bandwidth b) The required bit error rate is 0.05. The available antennas and RF amplifiers are given in the below table. Find the cheapest configuration for the hub and the two terminals. Calculate the total cost. Antenna diameter Price 1 m 3000 TL 1.5 m 4500 TL 2 m 6000 TL 2.5 m 7500 TL 3 m 10000 TL 4 m 16000 TL RF output power Price 1 W 5000 TL 1.5 W 8000 TL 2 W 10000 TL 2.5 W 12000 TL 3 W 14000 TL 4W 18000 TL City 2 and A page containing the complementary error function table is provided with the exam sheet. Notes and books can be open throughout the exam. Cell phones should be completely turned off and calculators are allowed. A VSAT network is established where the hub is located at City 1 and the two terminals are located City 3. The satellite is Eutelsat Hot Bird 13B at 13E. with a (G/T)sat of 12 dB/K, output backoff loss of 2 dB and input backoff loss of 2 dB. The transponder which will be used for this network has a bandwidth of 36 MHz. The modulation is 16-PSK with a modulation loss of 1 dB, 7/8 FEC and 20% rolloff factor. Outbound link has the following parameters: Downlink frequency 11800 MHz, uplink frequency 14100 MHz, bitrate 64 Mbps. Inbound link has the following parameters: Downlink frequency 12000 MHz, uplink frequency 14300 MHz, bitrate 32 Mbps. City 1 City 2 City 3 Coordinates EIRP sa Noise figure Room temperature Transmission line loss Atmospheric losses 4 dB 2 dB 1 dB 290K 290K 290K 2 dB 0.5 dB 0.3 dB 0.8 dB 0.8 dB 0.3 dB city1 = HAMBURG city2 = HELSINKI city3 = ERZURUM a) Fill in the blank cells of the below table. City 1 City 2 City 3 Distance to satellite Elevation angle Azimuth angle FSPL down FSPLup Downlink bandwidth Uplink bandwidth b) The required bit error rate is 0.05. The available antennas and RF amplifiers are given in the below table. Find the cheapest configuration for the hub and the two terminals. Calculate the total cost. Antenna diameter Price 1 m 3000 TL 1.5 m 4500 TL 2 m 6000 TL 2.5 m 7500 TL 3 m 10000 TL 4 m 16000 TL RF output power Price 1 W 5000 TL 1.5 W 8000 TL 2 W 10000 TL 2.5 W 12000 TL 3 W 14000 TL 4W 18000 TL
